When I try to run the two graphics programs primer2.c and sniff.c that I found in /usr/lpp/ibmgl, I get the message: gl: winopen: 1345-072 The requested X-Windows Server extension is not installed. I'm running 3.1 with the September updates applied, and using a 6091 monitor. Does anyone have any idea what is wrong? -- Dewey Paciaffi ...!uunet!edi386!eddjp